25S(JUDE) now subtropical// Invest 90S// Invest 91S// 1609utc

JTWC IS ISSUING 3 HOURLY SATELLITE BULLETINS ON SS 25S.

160900Z POSITION NEAR 26.8S 54.4E. 16MAR25. TROPICAL CYCLONE 25S (JUDE), LOCATED APPROXIMATELY 369 NM SOUTH-SOUTHWEST OF ST DENIS, HAS TRACKED EAST-SOUTHEASTWARD AT 20 KNOTS OVER THE PAST SIX HOURS. ANIMATED MULTISPECTRAL IMAGERY (MSI) DEPICTS AN INCREASINGLY DISORGANIZED LOW-LEVEL CIRCULATION WITH MAJORITY OF THE DEEP CONVECTION DISPLACED EASTWARD AND POLEWARD. A 160444Z METOP-B ASCAT IMAGE INDICATES WIND SPEEDS OF 40-45 KTS, WHILE ASSISTING WITH CURRENT POSITION ASSESSMENT TO THE WEST OF THIS PARTIAL PASS. ANALYSIS INDICATES THAT THE SYSTEM IS ALREADY LOCATED WITHIN A STRONG BAROCLINIC ZONE, WITH COOLING (26-27 C) SEA SURFACE TEMPERATURES AND STRONG (40+ KTS) VERTICAL WIND SHEAR, ENHANCED BY THE PASSAGE OF AN UPPER-LEVEL LONGWAVE TROUGH. TC 25S IS EXPECTED TO CONTINUE TRANSITIONING INTO AN ASYMMETRIC COLD CORE LOW AS IT TRACKS FURTHER SOUTHEASTWARD. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WRNCEN PEARL HARBOR HI. THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. MINIMUM CENTRAL PRESSURE AT 160600Z IS 993 MB. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160600Z IS 24 FEET./